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The movie quiz: Who is in both the highest and second highest grossing films ever?
Plus: How are actors Barbra Streisand and Diane Lane related by marriage?
![Sigourney Weaver in Avatar](https://www.irishtimes.com/resizer/v2/ZTERNPAYN4MGJJHA42VN3RCL3Q.jpg?auth=18ee76819b1d54b0ad96ae39a162d839420c9b8d20cef8ca3acfcd03f632517a&smart=true&width=1024&height=585)
If you are reading this on The Irish Times app, click here to play